Thermal and structural response of a two-story, two bay composite steel frame under fire loading

2009 ◽  
Vol 32 (2) ◽  
pp. 2543-2550 ◽  
Author(s):  
Yuli Dong ◽  
Kuldeep Prasad
Keyword(s):  
Structural Response ◽  
Steel Frame ◽  
Fire Loading ◽  
Composite Steel

scholarly journals Progressive Collapse Assessment: A review of the current energy-based Alternate Load Path (ALP) method

2019 ◽  
Vol 258 ◽  
pp. 02012 ◽  
Author(s):  
Nur Ezzaryn Asnawi Subki ◽  
Hazrina Mansor ◽  
Yazmin Sahol Hamid ◽  
Gerard Parke
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Progressive Collapse ◽  
Structural Response ◽  
Steel Frame ◽  
Collapse Mechanism ◽  
Load Path ◽  
Acceptance Criterion ◽  
Current Energy ◽  
Collapse Assessment

The Alternate Load Path (ALP) is a useful method that has generated a considerable recent research interest for the assessment of progressive collapse. The outcome of the ALP analysis can be assessed either using the force-based approach or the energy-based approach. The Unified Facilities Criteria (UFC- 4- 023-03) of progressive collapse guideline - have outlined that the force-based approach can either be analysed using static or dynamic analysis. The force-based approach using static analysis is preferable as it does not require a high level of skill and experience to operate the software plus no effort is required in scrutinising the validity of the analysis results output. However, utilising the static approach will eliminate the inertial effect in capturing the actual dynamic response of the collapsed structure. In recent years, the development of the energy-based progressive collapse assessment is attracting widespread interest from researchers in the field; as the approach can produce a similar structural response with the force-based dynamic analysis by only using static analysis. Most of the current energy-based progressive collapse assessments are developed following the requirements which are given in the progressive collapse guidelines provided by the Unified Facilities Criteria. However, little attention is given to the development of the energy-based approach using the Eurocode standards as a base guideline. This article highlights the merits of utilising the energy-based approach against the force-based approach for a collapsed structure and explains the collapse mechanism of a steel frame in the perspective of the energy concept. The state of the art of energy-based progressive collapse assessment for a structural steel frame is reviewed. The comprehensive review will include insights on the development of the energy-based method, assumptions, limitations, acceptance criterion and its applicability with the European standards. Finally, potential research gaps are discussed herein.

Seismic performance evaluation of damage-controlled composite steel frame with flexible-gel-covered studs

2020 ◽  
Vol 219 ◽  
pp. 110855
Author(s):  
Xianzhi Zeng ◽  
Kailai Deng ◽  
Masahiro Kurata ◽  
Jiahong Duan ◽  
Canhui Zhao
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Steel Frame ◽  
Seismic Performance Evaluation ◽  
Composite Steel

Experimental investigation of composite steel plate deep beam infill steel frame

2014 ◽  
Vol 14 (3) ◽  
pp. 479-488 ◽  
Author(s):  
Liqiang Jiang ◽  
Hong Zheng ◽  
Yuan Liu ◽  
Xiaosa Yuan
Keyword(s):  
Experimental Investigation ◽  
Steel Plate ◽  
Steel Frame ◽  
Deep Beam ◽  
Composite Steel

Effect of Non-Uniform Temperature Distribution over the Cross-Section in Steel Frame Structure

2015 ◽  
Vol 769 ◽  
pp. 65-68 ◽  
Author(s):  
Lenka Lausova ◽  
Iveta Skotnicova ◽  
Vladimira Michalcova ◽  
Petr Konečný
Keyword(s):  
Temperature Distribution ◽  
Cross Section ◽  
Computer Software ◽  
Steel Frame ◽  
Frame Structure ◽  
Uniform Temperature ◽  
The Cross ◽  
Fire Loading ◽  
Indeterminate Structures ◽  
Steel Frame Structure

The paper deals with the effect of non-uniform temperature over the cross-section in the steel frame structure under fire loading. The unequal temperature distribution causes additional bending moments in statically indeterminate structures. Numerical results of thermal and structural analysis from the commercial computer software ANSYS are compared with the experimental measurements on the steel frame exposed to high temperature.

scholarly journals Evaluation of structural response of composite steel-concrete eccentrically buckling-restrained braced frames

2020 ◽  
Vol 18 (4) ◽  
pp. 591-600
Author(s):  
Alireza Bahrami ◽  
Mahmood Heidari
Keyword(s):  
Structural Response ◽  
Shear Capacity ◽  
Braced Frames ◽  
Base Shear ◽  
Fe Modelling ◽  
Shear Link ◽  
Earthquake Records ◽  
Modelling Method ◽  
Buckling Restrained Braced Frames ◽  
Composite Steel

The main purpose of this paper is to evaluate the structural response of composite steel-concrete eccentrically buckling-restrained braced frames (BRBFs). The finite element (FE) software ABAQUS is employed to nonlinearly analyse the BRBFs. Comparing the modelling and experimental test results validates the FE modelling method of the BRBF. Three different strong earthquake records of Tabas, Northridge, and Chi-Chi are selected for the nonlinear dynamic analyses. A BRBF is then designed having a shear link. Afterwards, the designed BRBF is analysed under the selected earthquake records using the validated modelling method. The lateral displacements, base shears, and energy dissipations of the frame and shear link rotations are achieved from the analyses of the BRBF. The results are compared and discussed. The obtained BRBF results are also compared with their corresponding steel eccentrically braced frame (EBF) results. It is concluded that the BRBF can generally accomplish the improved structural response compared with the EBF under the earthquake records. Meanwhile, the BRBF has larger base shear capacity than the EBF. Moreover, the BRBF dissipates more energy than the EBF.

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